Map not populating with data on mobile app. OK on cloud and desktop.

I have a PBI report that connects live to SSAS tabular model. The report contains a map with zip codes as location and a measure as a value. When I view the report on desktop or in the cloud, the map renders perfectly with its data points. When I view the report on the mobile app on iOS (iPhone 5s), the map shows up but does not display the data points.